BESM stands for "Bolshaja Elektronno-Schetnaja Mashina" in Russian, which can be translated as "Large Electronic-Computing Machine" or simply "Large Computer".
BESM-6 was designed in S.A.Lebedev Institute of Precise Mechanics and Computing Equipment (ITMiVT in Russian) in the 1965. This is a mainframe type computer.
... Decibel; see Bel
DB is a French automobile maker; see DB (car)
DB is the abbreviation for Deutsche Bahn, the major German railway company
DB is the abbreviation of ...